package com.leadership.api.utils;

import java.io.IOException;
import java.net.URI;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.demo2do.core.utils.JsonUtils;

/**
 * 
 * @author dan
 *
 */
public class IdmHttpRaoUtils {
    
private static final Logger logger = LoggerFactory.getLogger(IdmHttpRaoUtils.class);
    
    private static final String appuser = "AUTH_LEADSHIP";
    
    private static final String appkey = "gzxjfl4ysv77f2ey";
    //private static final String appkey = "e0eeqpqhcfv6goet";
    
    private static final String randomStr = "1234567890qweasd";
    
    /**
     * 
     * @param url
     * @param param
     * @return
     */
    public static String doGet(String url, Map<String, String> param) {
        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();
        
        // generate param to json string
        String body = param != null ? JsonUtils.toJson(param).toString() : "";

        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 创建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (String key : param.keySet()) {
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();

            // 创建http GET请求
//            logger.info("uri is [{}]", uri);
            HttpGet httpGet = new HttpGet(uri);
            
            // set header
            httpGet.setHeader("Content-Type","application/json");
//            logger.info("appuser is [{}]", appuser);
            httpGet.setHeader("appuser", appuser);
//            logger.info("randomcode is [{}]", randomStr);
            httpGet.setHeader("randomcode", randomStr);
            
            String dateNow = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()) + "Z";
//            logger.info("timestamp is [{}]", dateNow);
            httpGet.setHeader("timestamp", dateNow);

            
            //鉴权
            String encode = DigestUtils.sha256Hex(StringUtils.join(appuser, randomStr, dateNow, "{", appkey, "}"));
//            logger.info("encodekey is [{}]", encode);
            httpGet.setHeader("encodekey", encode);

            //签名
            String sign = DigestUtils.md5Hex(StringUtils.join(url, "&" , body , "&" , appkey));
//            logger.info("sign is [{}]", sign);
            httpGet.setHeader("sign", sign);

            // 执行请求
            response = httpclient.execute(httpGet);
//            logger.info("get response code [{}]", response.getStatusLine().getStatusCode());
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
//                logger.info("get response resultString [{}]", resultString);
            }
        } catch (Exception e) {
            logger.error("#doGet error - ", e);
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                logger.error("#doGet error - ", e);
            }
        }
        return resultString;
    }

}
